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How to solve - Illegal image filename. Extension .bin.sig is expected
06/30/2022 
2 People found this article helpful
365,392 Views
Description
In this article you will find how you can solve the error "Illegal image filename. Extension .bin.sig is expected."
Resolution
The error message appears after you select the firmware update file to be uploaded in the firewall. It will start the process of uploading, but at the end you will get this error message.
The steps you have to follow to solve this are the following:
- Reboot the firewall. Then try to upload the firmware file again. If the problem persists, please proceed to step 2.
- Boot the firewall in safemode and try to upload the file again. You can follow this article if you don't know how to boot your SonicWall into safemode.
How can I put the SonicWall into safe mode?
If you are still facing the issue, please feel free to call on our support line for live technical assistance.
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